Anonymous benefactor and San Francisco real estate investor Jason Buzi, who started the Twitter handle @HiddenCash, has been making his way to various cities this weekend, dropping money-filled envelopes around New York and Houston.

"I found $60 from Hidden Cash on Twitter," he told NBC Chicago. "It's been a great time. It's fun, really fun."

Fernandez said he has been following the movement since it first gained popularity on the West Coast.

"I'm definitely going to help people out now when I get the chance," he said. "All because [@HiddenCash]."

Employees working in the area said they were surprised by the scavenger hunt.

"We came to work and were setting up the concession stands and a man was screaming he was happy, really, really, happy," said Park Grill Concessions employee Cyara Tanon. "We went to go see what it was and he picked up an envelope and then he pulled out the money."

Tanon said the man found the envelope on a set of stairs.

"It looked like a lot," she said. "Big bills."

But not everyone was quite as lucky.

"We've been looking for like an hour," said Sydney Lenzini. "It's getting a little annoying, but it's money."

According to the Twitter page, the green gifts in Chicago may not end with Father's Day.

Chicago - there'll also be a small surprise for you tomorrow. But we hid those reeeal well (totally different location).